Reversing mechanism.



P. J. BALL. REVERSING MEGHANISM. APPLIUTION FILED AUG.B, 1908.

Patented une 15, 1909.

a sums-snm 1.

F. J. BALL.

REVERSING MBUHANISM.

APPLIQATION FILED AUG. s, 190s.

Patented June 15, 1909.

a annu-surte z.

UNITED STATES PATENT OFFICE.

FREDERIC J. BALL, 0F NEW YORK, N. Y., ASSIGNOR TO NEW YORK GEAR WORKS, 0F

BROOKLYN, NEW YORK, A COPARTNERSHII.

RE VE RISING MEOHANIBM.

No. esitate.-

Specification of Letters Patent.

Patented June 15, 1909.

Application nieu augure a, 100s. senil No. 441,524.

Toall whom it may concern.'

Be it known that I, 'Falconara J. BALL, a citizen of the United States, and resident of the borough of Brooklyn, in the city and State of New York, have invented a new and useful Improvement inReversing Meehanism, of which the following isa specification.

My invention relates to an improvement in A further object is to' provide. a reversingv mechanism comprising a rotary driving shaft, a power transmitting shaft, a air of drums, a train of gearing connecting t e drums and shafts, brakes for holding the one or the other of the said drums stationary or for releasing both drums and means for clutching the two drums together when released from their brakes, said means being so arranged as to insure an absolute nonslipping frictional contact between the two drums when in op, eration and also toinsure an immediate release of the two drums from each other when not in operation.

' A practical embodiment of my invention is represented in the accompanying drawings in Whichf Figure 1 is an end view of my improve'd reversing mechanism with the arts in the positions which they assume Wfien are released and the two drums are clutched together for locking the driving shaft to the power transmitting` shaft. Fig. 2 is a longitudinal Acentral Asection through the same, Fig. 3 is a transversesection taken in the plane of the' line Ap-A of Fig. 2, looking in the direction of the arrows, Fig. 4 is, a transverse section taken in the plane of the lino B-B of Fig. 2 looking in the direction ofthe arrows, Fig. 5 1s a transverse section taken in the plane ofthe line O-C of pFig2,- looking in the direction of the arrows, F f6 is a detail` view looking toward one en, 'one member of one of the drums, Fig. 7 viqwl kin@ toward the other and both brakes Fig. 8 is a side view of the said member. Fig.

9 1s a section taken in the plane of the lineL D--D of Fig. 8, looking in the direction of the` arrows, and F ig. 10 is a detail face view of the clutch ring carried by one of the drums.

1 designates the rotary drivin shaft which may be driven from any suitable source of power, notshoxvn herein. This shaft is shown as rovided with a spur gear 2. D

he power transmitting shaft is denoted and it is provided with a s ur gear 4.r 1

s power transmitting shaftv is s own herein as loosely mounted on the driving shaft with its gear 4 adjacent tothe driving shaft gear 2.

`One of the dru-ms comprises two members 5.and 6 which are provided with exterior circumferential fianges 7, 8, arranged to be secured to ether by suitable screws 9. The side wall o? the member 5 is cylindrical so as to .present a proper surface for the brake band i0 ofthe band brake of well known or approved form. The other drum consists of 4two members 11 and 12, the side wall of the member .12 being cylindrical so as to present a proper surface for the brake band 13 of a band brake of any well known or approved form. The4 member-11 of the drum 11, 12, is located within the drum 5, 6 andis provided with a hub 12* surrounding the power transmitting shaft 3 and fixed to the member 12 exterior to the drum 5, 6.y lThe member 5 of the drum 5, 6, is fixed to a sleeve V14 loosely mounted on the driving shaft 1 which sleeve is rovided with a s ur gear 15 located adjacen to the drivingaaft gear 2. Three spur ears 16, 17, 18, are mounted to rotate toget er on a stud axle 19 su ported in the end walls of' the drum meniber 11.

The gear 16 meshes with thedriving shaft gear 2; the gear 17 meshes with ihc power v transmittin shaft gear '4 `and the gear -18 meshes wit the gear '15 of the 'drum 5, 6. The number of teeth in all three sets of gears is the same but the number of teeth on each gear of'each set may be varied to suit different requirements as to speed transmission from the driving shaft v1. ,In the `present instance the gear 16 ,isshownas provided with twenty-seven teeth alndfthe gear 2 with eighteen teeth; the spur gear17 is shown as providedgwithnineteenlteeth and the spur. senr 'tmlth .twentyeixfteeth and 4the spur.. ,gearilagshown as provided with twentythespulgear 15 athtwenty-s ,arranged and operated as follows.

four teeth. It will thus he seen that each pair of gears is rovided with a total of orty-five teeth. n the accompanying drawings, I have showndtwo sets of these gears 16, 17 18, arranged diametrieally op osite each other but one or more sets may e used as found desirable.

The means which I have shown for clutching the two drums together is constructed, A ring 20 is interposed between one end of the drum memberl .11 and the end wall of the drum member 5, which ring is permitted a sliding movement toward and away from the drum member l1v but is looked to rotate with the drum 5, 6. This is provided for in the present instance b forming a lug 2l on the interior of the rum member 5, which lug is embraced by two lugs 22 on the periphery of the ring 20.

A plurality of loosel slidin pins 23 are mounted in the end wallof the rum member 5 with the inner ends in en agement with the ring 2() and their outer ein s exposed. Each one of the plurality of dogs is pivoted at 24, between two lugs 25 on the end of the drum member 5. Each dog 'is p'rovided'with a long arm 26 and a short arm 27. The short arm is provided with an adjustahle screw .28 arranged to engage the exposed end of one of the sliding pins 23. A look not 29 is pro-- 4vided for securing the screw 28 in the proper adjustment. The long arm 26 of each of the dogs is arranged to be swung outwardly by enga ement with the beveled end 3 0 of al clutc i slide 31 loosely mounted on the driving shaft l. To insure a non-slipping frietional lock between the two drums and also to insure an insta-nt release of the two drums and thereby ohviate any tendency of the sticking or binding of the parts, the clutch surfaces of the two drums are rovided between the end walls of the mem er 11 of one of the drums and the end wall of the member 6 and the-'face of the rin drum. The outer faces o the end walls of the member 11 of the drum 11, 12, are provided with cork inserts 32. This member 11 is further provided .with suitable. o enings 33 in its side wall foi-the purpose o inserting and removing the ears 16, 17, 18.

In operation, if it be desired to' drive the power transmitting shaft 3 in the same di` reetion and at the same speed as the driving shaft 1, the brake bands 10 and 13 are released and the elutehslide 3,1 is moved into position .to rock the de s 2H, 27, in a direc- -tion to bring the outer aces of the end walls of the drum member 11 into frictional en-1 gagement with the inner face of the end wall of the drum member Sand the clutch ring 20 of the drum member 5. IWhen in this position the drums and shaft all rotate together.

When. it is desired to drive the power transmitting shaft in the same direction as the 2O of the other.

driving shaft but at another speed, the twd drums are released by the withdrawal of the clutch slide 3]. and the brake hand 13 is tightened to cause it to grip the drum memi ber 12 and hold it against movement. This will hold the axis of the gears 16, 17, 18 stationary but will ermit the said gears to rotate on their axis. When it is desired to drive the power transmitting shaft in th reverse direction to the driving shaft, th brake band 13 is released and the brake ban'll 1() is tightened on its drum member 5, thus holding the drum 5, 6, stationary. This w l1 `permit the gears, 16, 17, 18 to rotate on th lir axis and at the same time permit the axis to rotate around the axis of the driving shaf l.

What l. claim is:

'1., A reversing mechanism comprising a driving shaft, a power transmitting shaft, two drums, ex ternall toothed gears eonnecting the shafts and dsiums, a brake for each drum and means for forcing adjacent plano surfaces of both drums in to frietional engagement with each other for locking the drums together.A

2. A lreversing mechanism comprising a drivingr shaft, a power transn'iitting shaft, two drums, externally toothed gears connecting the shafts and ruins, a brake for each drum, means for forcing adjacent planesurfaces of both drums into frictional engz'ige` ment with each other for locking the drums together and cork inserts for one of said plane co-acting surfaces.

3. A reversing mechanism comprising a driving shaft, a power transmitting shaft, two drums, externall toothed gears connecting the shafts and ruins, a brake for each drum and means for forcing a plurality of sets of adiaeent plane surfaces on both drums into fric-tional. engagement with each ot 'er for locking the drums together.

ing the shafts and drums, a brake' for each drum and means for forcing end walls of the two drums into frictional engagement with each other for locking'the drums together.

6. A reversing mechanism compgisjnga driving., shaft, a power transmittin'gjsfhaft, two drums, externall toothed gears connect- 4. A reversing mechanism comprising a` drums, a brake foreach` two drums, externally toothed gears connecting. the shafts and rums, a brakefor each drum, means forforeing end Walls of tlniegjnero drums into fric-,tional en agement witheaeTV i other for locking the ruins wggther'and ist" cork inserts for one of said co-acting end walls.

7. A reversing mechanism comprising a driving shaft, a power transmitting shaft, two drums, externall toothed gears connecting the shafts and rums, a brake for each drum, a friction ring carried by one drum4 drum and the friction ring into engagement with each other for'locking the drums together, and cork inserts iii said end Wall.y

9. A reversing mechanism comprising adriving shaft, a power-transmitting shaft, two drums, one having an inner and an outer member, externally 'toothed gears connectingthe shafts aiiddrums, a brake for eachl drum and means for 'forcin one end wall of one drum and one end wa ofthe inner lmember 'of' the other drum into frictional engagement with each other for locking the drums together.

10. A reversing mechanism comprising a .driving shaft, a power transmitting shaft,

two drums, one having an inner and an outer member, externally toothed gears connecting the shafts and drums, a brake for each drum, means for forcinv` one end wailof one drum and one end waliof the inner member of the other drum into frictionai engagement with each other for locking the drums together, and cork inserts for the said end Wall of the inner drum member.

toothed gears connect- 11. A reversing mechanism comprisinga driving shaft,- powertraiismittmg shaft, two drums, one having a'n inner and. an outer member, gears connecting the shafts and drums va-brake for each drum, carried by one drum, and means for forcing the end walls lof the inner member of one drum into `frictio'nal en agement with said 4friction ring and anen wall of the other dru-m for lockixigthe drums ,togethen- 12. A reversing mechanism comprising a driving shaft, Va power transmitting s'haft, two drums, one having an inner and an outer member, ears connecting the shafts and drums, a rake for each d'rum, a friction ring carried by one drum, means for forcing theendwalls'of the inner member of one drujnintoffrictional en 4agment with said friction ring and an en wall of the other driim for locking the drums together and cork insertssfor the end walls of said inner drum member.

13. A reversing -mechanism comprising a driving shaft, a power transmitting shaft, two drums one havingban inner and an outer member, gears carried y the said inner meinber connecting the shafts and drums, a brake for each drum, 'a friction ring carried by one drum, and means for forcing the end walls of the inner member of one drum v into frictional engagement with said friction rig and van end wall ofthe other drum for locking the drumstogether. Y

In testimony, that I claim the foregoing as my invention, I have signed my name in resence of two' witnesses, this twentyoiirth day of July 1908.

, FREDERIC J. BALL.

,Witnessesz FI GEORGE BARRY, C. L. SUNnoaEN.

a friction ring 

